Sorry, I should’ve been clearer: I need cargo to be online the 1st time so that it could resolve my dependencies for me online the 1st time because I don’t want to setup local repos and stuff. Thanks

If you use dependencies from crates.io or other online sources, then yes you'd need to download those somehow. But that can be done separately, on an entirely different computer if you wanted.

Yup, that works! It also downloads docs so you can `cargo doc` and then you can peruse the generated docs for all of your dependencies.

To be clear, it downloads the source code, and then “cargo doc” builds them from the source.